2 files changed, 11 insertions, 7 deletions

diff --git a/app/demo/main.c b/app/demo/main.c
index 0b83711..0aa4e34 100644
--- a/app/demo/main.c
+++ b/app/demo/main.c
@@ -11,7 +11,8 @@ typedef struct GfxAppState {
   int unused;
 } GfxAppState;
 
-bool Init(GfxAppState* state, int argc, const char** argv) {
+bool Init(GfxApp* app, GfxAppState* state, int argc, const char** argv) {
+  assert(app);
   assert(state);
 
   (void)argc;
@@ -20,24 +21,26 @@ bool Init(GfxAppState* state, int argc, const char** argv) {
   return true;
 }
 
-void Shutdown(GfxAppState* state) {
+void Shutdown(GfxApp* app, GfxAppState* state) {
+  assert(app);
   assert(state);
-  //
 }
 
-void Update(GfxAppState* state, double t, double dt) {
+void Update(GfxApp* app, GfxAppState* state, double t, double dt) {
+  assert(app);
   assert(state);
 
   (void)t;
   (void)dt;
 }
 
-void Render(GfxAppState* state) {
+void Render(const GfxApp* app, GfxAppState* state) {
+  assert(app);
   assert(state);
-  //
 }
 
-void Resize(GfxAppState* state, int width, int height) {
+void Resize(GfxApp* app, GfxAppState* state, int width, int height) {
+  assert(app);
   assert(state);
 
   (void)width;
diff --git a/include/gfx/render/imm.h b/include/gfx/render/imm.h
index 62c071e..00af997 100644
--- a/include/gfx/render/imm.h
+++ b/include/gfx/render/imm.h
@@ -3,6 +3,7 @@
 #include <math/aabb2.h>
 #include <math/aabb3.h>
 #include <math/vec3.h>
+#include <math/vec4.h>
 
 typedef struct Imm Imm;